Oil burner



April 14, 1925. 1,533,129

E. L. MILLER OIL BURNER Filed'Sept. l0. 1923 Patented Apr. 14, 1925.

UNITED STATES EDWIN Ir. MILLER, 0F KANSAS CITY, MISSOURI.

OIL BURNER.

Application 111er). vSeptember 10, 1923. Serial No. 661,797.

To all 'whom 'it may concern:

Be it known that l, EDWIN L. MILLER, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, haveinvented certain new and useful Improvements in Oil Burners; and I do declare the following to be a full, clear, and exact description-,ofl the invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification. A

This invention relates to oil burners and the primary object thereofis to provide a novel form of oil burner having a plurality of controls or valves adapted to admit varying quantities of oil into the burner to mix with air to support -combust1on. 0rdinary oil burners are constructed with a single inlet pipe and while a valve 1s provided for the inlet pipe to control the vols ume of oil fed to the burner, the heat generated cannot be greater than that permitted b the maximum quantity of oil flowing t rough the single pipe. u lMy 1nvention contemplates the provislon of means whereby the flexibility of the heat control will be over a considerably wider range than is possible with the standard type of burners now on the market: I n orderto provide the maximum liexibility, I use a plurality of inlet plpes, there being three shown, all fed from .a common source of supply toV a manifold connected all of the pipes. Each pipe has an individual controlling valve so that any one valve can be unseated to the exclusion of the others, or two pipes may feed oil or if desired, all of the pipes may' feed oil at one time. Therefore a very low {iame may be provided or moderate' weather or a very intense flame m'ay -be provided for extremely cold weather and the pipes and valves are so arranged that any degree of heat may be provided between the two extremities. This enables me to provide .a burner hav- -ing great exibility of a relatively wide range to 'take care of practically all conditions which may be encountered.. v

I have also providedl means whereby the amount ofair'fed to the burner to support combustion can be ,-varied. In some instances I may find-it necessary to eut down the supply of air, as for example when a minimum number of parts so that the burner can be easily assembled and so that the parts will be readily accessible for inspection and repair.

The novel construction of the invention will be clearly understood by reference to the following description in connection with the accompanying drawings, in which- Fig. 1 is a perspective view of an oil burner constructed in accordance with my invention, part of the arch and main retort or generator being broken away to show the oil connection to the retort.

Fig. 2 is a central vertical section of the burner, illustrating the relation of the main and auxiliary retorts. T

The invention is illustrated as consisting of three castings, a base 1, air arch 2, and a generator or main retort 3. The basemay be any form and provided with a concave bottom 4, constituting a riming pan wherein an initial supply o oil may be burned to vaporize the contents of an auxiliary retort 5 or the main retort 3. At diametrically opposite sides of the 'base are arch supporting seats 6 and 7 in line with air inlet ports. 8 and 9 through which air is admitted to the arch 2 to support combustion in the main retort. The main retort 3 is mounted on the arch 2 and comprises a rectangular, hollow casting having a central partition 3 dividing its interior into chambers 10 and 11 which respectively receive fuel from pipes 12 and 13 that extend up through the legs of the arch as shown. The arch insulates the pipes from the heat of the burner. The chambers 10 and 11 have gas outlets 14 and 15 opening into the arch to bring the generated gas into contact with air from the ports 8 and 9 to form a combustible mixture which is emitted through the opening 16 in the arch 2. The pipe 12 receives fuel" from a supply pipe 17 provided with a valve 18 and the pipe 13 receives fuel from the pipe 17 also provided with a valve 18' identical with the valve 18, for controlling flow of fuel to thechamber 1,0 and 11 respectively.

The auxiliary retort comprises a hollow cone 19, formed aspart of the base 4 and having an interior chamber 20, to which oil is admitted through a pipe 21 that extends through the base to the bottom of the a proper fuel .mixture chamber, the pipe being threaded into the base as at 22 and connected to the manifold 29 and having a valve 23 whereby flow to the auxiliary retort is controlled independently of flow through pipes 17 or 17 discharged to main retort 3. The auxiliary retort has an outlet 24 located centrally below the opening 16 in the arch 2, and located over the opening is a defiector 25 comprising a disc 26 having legs 27 which seatl upon the top of the cone as shown. The disc not only serves to deflect flame from the auxiliary retort down on to the side of the cone 19 but also serves as a spreader for the generator 3.

' In using the burner the valve 23 is opened and oil admit-ted to the cone 19 overlows into the basin 4, and is ignited and burned to heat the arch 2 and generator 3. As soon as the arch and generator are heated to generating temperature the valve 18 or 18 is opened and oil flowed into and vaporized within the chamber 10 and mixed with air which is drawn through the arch to form If a hotter fire is desired the other valve 18 or 18 may also be opened to admit a supply of oil tothe vaporizing chamber 11, t us increasing the capacity of the burner.

By reference to the drawings it, will be l observed that the oil can be fed from a single ipe 28 into the manifold 29 connected to tlie pipes 17, 17 and 21 and that each pipe 17, 17 and 21 has an individual control through the medium of the valve 18, 18 and 23 and if desired the valve 23 can be cracked slightly to feed a small quantity. of oil to the cone 19 which will serve as a pilot burner, so that if the other burner elements are operated by a thermostatic control, means will at times be provided 'to ignite the fuel When appreciable heat is deslred the valve -23 can be opened farther or valve 18 can be unseated'to the exclusion of valve 18 or valve 18 can be unseated to the exclusion of valve 18 or all of the valves can be opened depending upon the quantity of heat to be generated. I may find in some instances for example where all of the valves are opened that a large quantity of air is required. In order to provide for this I form the casting 1 with air passageways or collars 30 .and 31, onwhich may be located hollow elbow members 32 and 33 through which air may pass from belowthe bottom of the casting and discharge through the center of the burner to co-mingle with the air. discharged through the central orifice or opening 16 in the arch 2 so an adequate amount of air will be available to support higher combustion. In the event the air passing through the arch 2 is suicient the elbow members 32 and 33 being in the middle of attachments which lmay or may not be used as expediency dictates'. It will therefore be apparent that the burner is uite iexible in its operation. The oil may e admitted through any of the pipes which may be conveniently fed through a sin le source of supply and yet any degree of eat within a wide range may be provided, and that means is provided for varying the air supply to suit the requirements of the burner.

What I claim and desire by Letters Patent is:

1. An oil burner comprising a base, an air conducting arch supported on the base having a downwardly directed outlet, retorts having separate oil inlets and separate vapor outlets opening into the air conducting arch above the air outlet, and a. retort below the first named retorts having a vapor outlet piti-lening upwardly adjacent to said air out- 2. An oil burner comprising a base, an

`air conducting arch supported on the base and havingan air outlet, a retort mounted upon the arc-h having a partition dividing its interior into separate chambers said chambers having separate oil inlets and having separate gas outlets opening into the air conducting arch, and a hollow, cone-.shaped member formed in said base, having an oil inlet and having an oil outlet opening toward the air opening of the arch and a spreader on the cone above its oil outlet.

3. An oil burner lcomprising a base, and air conducting arch supported on the base having an air outlet, a retort mounted upon the arch having a partition therein dividing the retort into separate chambers, an oil inlet and a gas out et for each chamber, the gas outlets opening into the air conducting arch, and.4 a second retort below the first named retort, comprising a hollow coneshaped member formed in said base, having an oil inlet and having a vapor outlet opening in the direction of the air opening in the arch, and a spreader carried on the cone 'above the oil outlet.

4. An oil burner comprisin a base, an air conduit having an openlng directed downwardly over the center of the base, a main generator having its interior divided to form separate chambers, each having an independent fuel inlet andan independent outlet, the outlets directed downwardly toward the air outlet of the arch, an initial generator in the base comprising a chamber having a fuel inlet and havin an outlet directed toward the air outlet o the arch, and

absence separate means for controlling flow of fuel to the three fuel inlets whereby the three generating chambers may be supplied separately or simultaneously. V

5. In an oil burner, a base, an oil retort above the base having a discharge opening above the saine in line with the center of the base, an oil retort carried by the base having an opening in line with .the discharge opening in the first mentioned oil retort and a hollow arch supported by the base having an opening in line with the openings in the retorts for supplying air to the space between the retorts and removable means for supplying additional air below the discharge opening of the first mentioned retort.

6. In an oil burner, a base, oil retorts above the base having discharge openn s above the base in line with the center of the base, an oil retort below the discharge openings of the first mentioned retorts, a hollow arch between the upper and lower retorts having an opening in line with the openings of the retorts for supplying air to the space below the discharge opening of the u per rctorts and removable means for supp ying additional air below the discharge openlngs of the lirst retcrts, the upper retorts having separate oil inlets and an independent oil inlet for the lower retort.

7. In an oil burner, a base, oil retorts above the base having discharge openings above the same in line with the center of the base, an oil retort below the discharge openings of the upper retort having a discharge' opening in line with the openings of the upper retorts, a hollow arch between the upper and lower retorts having an opening for supplying air to the space between the upper and lower retorts and removable vmeans for/ supplying additional air below the discharge openings of the upper retorts, separate oil inlets for the upper retorts, an inde endent oil inlet for the lower retort, a sing e source of supply for all the inlets and separate valves for independently cont-rolling the retorts.

8. An oil burner comprising a base, an air conducting arch supported on the base having a downwardly directed outlet, a retort on the arch having an oilinlet and a downwardly directed outlet in line with the outlet for the arch, a retort below the first named retort having a vapor outlet opening upwardly, adjacent to the outlet for the arch and a cap on the second mentioned retort above and in s aced relation with the outlet thereof so tiat vapor passing from the second mentioned retort will be directed outwardly and downwardly by the cap.

9. In a burner of the class described, a base plate having a ila-nge rising therefrom to form an oil reservoir, a cone-shaped boss in said reservoir with a conduit openlng through the apex thereof, a s reader cap mounted on said apex and space therefrom, a generator mounted above said cap, a heat diffusing member located between said spreader cap and generator, and a pipe for supplying oil to said generator.

In testimony whereof I aix my signature.

EDWIN L. MILLER. 

